JP2023014681A - Step floor support leg and step floor support structure - Google Patents

Abstract

To provide a step floor support leg and a step floor support structure using the leg with excellent workability and freedom in setting a direction of a sleeper material freely in curved areas, etc. when constructing a stair-like step floor installed indoors, outdoors, etc. of a building.SOLUTION: There is provided a step floor support leg 2 for supporting an upper and lower subfloor materials of a step floor, respectively, which comprises: a pillar member 6 erected against a foundation surface 1; an upper support 10 disposed on an upper portion of the pillar member and on which a sleeper 20 for the upper subfloor material can be placed; an intermediate support 12 attached to an intermediate portion of the pillar member and on which a sleeper 20 for the lower subfloor material can be placed. The intermediate support 12 is formed in a cylindrical shape arranged horizontally, a through-hole 56 is provided at one end of the intermediate support 12, a loading space portion 60 is formed at the other end on which the sleeper material 20 can be placed, the support member 6 is inserted through the through-hole 56 of the intermediate support 12, and the intermediate support 12 is attached in the intermediate portion of the support member.SELECTED DRAWING: Figure 1

Description

The present invention relates to a stepped floor support leg for constructing a stepped floor provided indoors or outdoors of a building, and a stepped floor support structure using the stepped floor support leg.

Regarding stepped floors, the applicant of the present application previously applied for a stepped floor support leg described in Patent Document 1.
This is a stepped floor supporting leg that supports each base member of the upper tread surface and the lower tread surface of the stepped floor. It has a first hanging support member for placing the hanging material related to the tread surface, and a second hanging support member attached to the support member and mounting and supporting the hanging material related to the lower tread surface. , The second hanging support member has a position adjuster attached to the strut member and a receiving tool attached to the position adjusting tool, and is configured to place the hanging material on the receiving tool.

Further, the edge joist support member described in Patent Document 2 includes a receiving member that supports the ends of two edge joists by placing them on the upper surface, support legs that support the receiving member, and protrudes upward from the receiving member, and a movement restricting member for restricting the movement of each of the two joints in the width direction, wherein the movement restricting member is provided so as to be able to switch the axial direction of the joists when supported by the receiving member. be.

JP 2018-84135 A JP 2015-203217 A

By the way, in the stepped floor supporting leg described in Patent Document 1, the direction of support of the hanging timber supported by the second tying support member is fixed in one direction. is defined and limited by the orientation of the receiver attached to the position adjuster. On the other hand, the receiving member described in Patent Document 2 has a form in which the direction of the large pull can be switched. There is a problem that

The present invention has been made to solve the above-mentioned problems, and the degree of freedom of the placement form of the large-sized lumber is increased, and the direction of the large-sized lumber can be freely set at a curved portion, etc., which is excellent in convenience. Another object of the present invention is to provide a stepped floor support leg excellent in workability and a stepped floor support structure using the stepped floor support leg.

In order to solve the above technical problems, a stepped floor supporting leg according to the present invention supports an upper underfloor member and a lower underfloor member of a stepped floor, respectively, as shown in FIGS. The supporting legs 2 of the stepped floor are support members 6 erected with respect to the base surface 1, and are arranged above the support members 6, and are provided with a large pull member 20 related to the underfloor member on the upper side. and an intermediate receiver 12 attached to an intermediate portion of the support member 6 and capable of placing a large drawer 20 related to the underfloor material on the lower side. The receiving tool 12 is formed in a cylindrical shape arranged sideways, and a through-hole part 56 for vertical insertion is provided on one end 51 side of the intermediate receiving tool 12, and the large pull member is provided on the other end 53 side of the intermediate receiving tool 12. 20, a flat mounting space portion 60 is formed, the support member 6 is inserted through the through-hole portion 56 of the intermediate support member 12, and the intermediate support member 12 is inserted into the intermediate portion of the support member 6. is attached.

The stepped floor supporting leg according to the present invention has a structure in which the support member 6 is provided with a screw groove, and the intermediate support member 12 is attached to the support member 6 so as to be adjustable in height.

The stepped floor support leg according to the present invention has a rectangular cross-sectional shape as the intermediate support member 12, which includes an upper plate portion 50, side plate portions 52 bent downward from left and right portions of the upper plate portion 50, and a lower plate portion 54. A rectangular tubular material is used, and the width of the upper plate portion 50 is formed to be larger than the vertical width of the side plate portion 52 .

In the stepped floor support leg according to the present invention, the upper plate portion 50 and the lower plate portion 54 of the one end portion 51 of the intermediate support member 12 are provided with the through hole portions 56, respectively, and the through hole portions 56 are provided with the support members. 6 is inserted through the intermediate receiving member 12, and the upper and lower portions of the intermediate receiving member 12 are respectively fastened and fixed with a nut member 38. As shown in FIG.

The stepped floor support leg according to the present invention is provided between the upper plate portion 50 and the lower plate portion 54 near one end portion 51 of the intermediate support 12, and the upper and lower ends of the upper plate portion 50 and the lower plate portion 54, respectively. It is a configuration in which a support member 62 to which the part is fixed is arranged.

In the stepped floor support leg according to the present invention, the support member 62 is formed to have an L-shaped cross section, and a part of the vicinity of the through-hole portion 56 is arranged so as to be surrounded by the L-shaped opening 63 of the support member 62. It is a configuration that

In the stepped floor support structure according to the present invention, the stepped floor support legs 2 described in any of the above are arranged at three or more points on the base surface 1 and on a curved line in plan view. Then, the end portions of the two large hanging members 20 are butted against the mounting space portion 60 of the intermediate receiving member 12 of the stepped floor support leg 2, and the angle formed by these large hanging members 20 is set to It is arranged so as to follow the curved shape to form a foundation for the stepped floor.

According to the stepped floor support leg of the present invention, the intermediate support member attached to the intermediate portion of the support member is formed in a cylindrical shape arranged sideways, and one end portion of the intermediate support member is provided with a through hole that is inserted vertically. A hole is provided, and a flat mounting space is formed on the other end side so that the hoisting material can be placed. The degree of freedom of the placement form of the lumber is increased, and the direction of the overdraft lumber can be freely set on the underfloor such as a curved portion, providing excellent convenience and excellent workability.

According to the tiered floor support leg of the present invention, the support member is provided with a screw groove, and the intermediate support is attached to the support member so that the height of the intermediate support can be adjusted. There is an effect that it is possible to set to

According to the stepped floor support leg of the present invention, the intermediate support is a square tube having a rectangular cross section, which is composed of the upper plate portion, the side plate portions bent downward from the left and right portions of the upper plate portion, and the lower plate portion. Since the horizontal width of the upper plate portion is formed to be larger than the vertical width of the side plate portion, there is an effect that a wide mounting space portion can be formed in which the oversized lumber can be mounted.

According to the stepped floor support leg of the present invention, the upper plate portion and the lower plate portion of one end of the intermediate support member are provided with through holes, respectively, and the support members are inserted through the through hole portions, thereby Since the upper and lower parts are fastened and fixed with nut members, and the large-sized material is placed in the mounting space provided on the upper plate of the intermediate receiver, mounting and height adjustment of the intermediate receiver can be easily performed. has the effect of

According to the stepped floor support leg of the present invention, the support is fixed between the upper plate portion and the lower plate portion in the vicinity of one end of the intermediate support at the upper end portion and the lower end portion, respectively, to the upper plate portion and the lower plate portion. Since the members are arranged, the strength of the upper plate portion and the lower plate portion of the intermediate receiver is increased, and the rigidity of the intermediate receiver itself is increased.

According to the stepped floor support leg of the present invention, the support member is formed to have an L-shaped cross section, and the opening of the support member surrounds the vicinity of the through-hole, so that the vicinity of the through-hole of the intermediate support is maintained. There is an effect that the strength of the upper plate portion and the lower plate portion of the frame is effectively reinforced, and the fastening and fixation of the intermediate receiving member are strengthened.

According to the stepped floor support structure of the present invention, the stepped floor support legs are arranged at three or more points on a curved line in a plan view, which are parts on the base surface, and the intermediate receivers are placed thereon. In the storage space part, the ends of two large lumbers are butted against each other, and the angle formed by these lumbers is arranged in a state along the curved shape to form the base of the stepped floor. Even in the case of a floor underfloor such as a flattened place, since the direction of the large lumber can be freely set, the construction is easy, the convenience is excellent, and the workability is also excellent.

It is a figure which shows the stepped-floor support leg and stepped-floor support structure (part) which concern on embodiment. FIG. 4 is an exploded view (partial) of the stepped floor support leg according to the embodiment; It is a figure which shows the intermediate|middle receiver (a) of a step floor support leg, and a support member (b). FIG. 4 is a diagram showing an intermediate receiving member (with a built-in support member) according to the embodiment, (a) and (b) being side views, (c) being a cross-sectional view, and (d) being a cross-sectional view taken along the line A-A'. It is a figure which shows the stepped floor support structure (part) which concerns on embodiment. It is a figure which concerns on embodiment and shows the large drawing material support form of the intermediate|middle receiving tool of a step floor support leg, (a) is a perspective view, (b) is a top view. It is a figure which shows the installation fixed state of the step floor support leg which concerns on embodiment. 1 is a plan view of a stepped floor support structure using stepped floor support legs according to the embodiment; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 shows a stepped floor support leg 2 and a stepped floor support structure 4 according to the embodiment. The stepped floor support structure 4 using the stepped floor support legs 2 is a stepped structure built on the foundation surface 1 for indoor and outdoor use in buildings such as lecture halls, theaters, halls, event venues, and other public facilities. It can be adopted as a base structure for stepped floors. In particular, this stepped floor support structure 4 is effective when the installation location of the stepped floor is curved in a curved shape or an arc shape.

The stepped floor support leg 2 has a column member 6, a pedestal 8, an upper support member 10, an intermediate support member 12, and the like, and is entirely made of steel. The stepped floor support structure 4 includes the stepped floor support legs 2, the large lumber 20, the floor joists 22, and the floor materials (footboards) such as discarded boards.

The stepped floor supporting legs 2 respectively support the upper and lower underfloor members of the stepped floor. These sub-floor materials include large joist materials 20, joist materials 22, scrap boards, and the like. The upper support member 10 of the stepped floor support leg 2 is arranged on the upper part of the support member 6, and a large pull member 20 related to the upper underfloor material is placed thereon. It is attached to, and the large drawing material 20 etc. which relate to the underfloor material of the lower side are placed.

In this way, the upper and intermediate receivers 10 and 12 of the step support legs 2 respectively form the upper floor surface 24 (or tread surface) and the lower floor surface 26 (or tread surface) of the riser portion of the step floor. support each substrate forming a surface).

The stepped floor supporting leg 2 has a support member 6 erected on the upper part of a pedestal 8, an upper support 10 is arranged on the upper part (top) of the support member 6, and an intermediate support 12 is provided in the middle part of the support member 6. is attached.
A large drawing material 20 and a joist material 22 are placed and attached to the upper receiving member 10 and the intermediate receiving member 12, respectively, and the floor surface (tread surface) of the upper step of the riser portion of the stepped floor (tread surface) and the floor surface of the lower step portion are provided. (Tread surface) foundation is formed. A riser portion of the stepped floor is formed between the upper support member 10 and the intermediate support member 12, and the space between the upper and lower sides is the height of the riser.

The pedestal 8 comprises a flat support portion 30, leg portions 32 extending obliquely downward from the left and right portions, and fixing portions 34 extending horizontally outward from the lower ends of the leg portions 32, respectively. A holding hole 36 through which the support member 6 is inserted is provided in the center of the support portion 30 . The fixing portion 34 of the base 8 is fixed to the base surface 1 by using a fixing tool such as an anchor or an adhesive.

The strut member 6 is made of a cylindrical rod material and has a shape in which a screw groove is formed on the entirety. The support member 6 is erected on the support portion 30 of the pedestal 8 using a nut member 38, a washer 40 and the like so as to be adjustable in height. As the washer 40, a spring washer is used here.
In this case, a nut member 38 is screwed in advance to a portion near the lower portion of the support member 6, and a washer 40 is fitted to the lower side thereof. screw together. Then, the supporting portion 30 is sandwiched between the two nut members 38, and the support member 6 is erected and fixed to the pedestal 8. - 特許庁

Alternatively, the strut member 6 can be erected so as to be adjustable in height by fixing a nut member to the upper part of the support portion 30 of the base 8 by welding or the like, and screwing the strut member 6 into this. Further, instead of the pedestal 8, a configuration in which the support member 6 is erected and fixed to a plate-like seat material can be adopted.
In addition, it is also possible to construct the support member 6 by directly embedding the lower part of the support member 6 in the base surface 1 without using the pedestal 8 .

The upper receiving member 10 has an overall flat disc shape with a downwardly bent periphery, for example, in the shape of an inverted dish. The upper receiving member 10 has a vibration isolator 78 on its upper surface, and a large tension member 20 is placed and held on the upper part of the vibration insulator 78 . The anti-vibration material 78 may be adhered to the upper support 10 , and the interposition of the anti-vibration material 78 can prevent creaks and the like between the upper support 10 and the tension member 20 . A similar effect can be obtained for the intermediate receiving member 12 by interposing the vibration isolator 78 therebetween.

A hole 44 is formed in the central portion of the upper support 10, and the upper portion of the support member 6 can be inserted through the hole 44. As shown in FIG. A fixing nut 46 is welded to the lower portion of the upper receiving member 10 at the same central position as the hole 44 . The upper support member 10 is mounted by attaching a nut member 38 and a washer 40 to the support member 6, screwing a fixing nut 46 of the upper support member 10 from the top of the support member 6, and fastening the nut member 38 from below.

As described above, since the upper receiving member 10 is screwed onto the upper portion of the support member 6 via the fixing nut 46, the height of the upper receiving member 10 can be adjusted to adjust the height of the upper tread surface. be able to.
The upper receiver 10 has a flat surface and a circular shape, here with a diameter of 85 mm. In this way, the surface of the upper receiving member 10 has a large enough area to allow the large drawing material 20 to be placed thereon. For example, two large drawing members 20 can be arranged with an angle (such as an obtuse angle) on the upper receiving member 10, and placed and fixed.

The intermediate support member 12 for the stepped floor support leg 2 has a rectangular cross-sectional shape including an upper plate portion 50, side plate portions 52 bent downward from left and right portions of the upper plate portion 50, and a lower plate portion 54. Consists of square tube material. In this manner, the intermediate receiving member 12 is formed in a cylindrical shape, and has a configuration in which the axial direction thereof is arranged sideways. A through-hole portion 56 is provided through each of the upper plate portion 50 and the lower plate portion 54 in the vicinity of one end portion 51 in the axial direction of the tubular intermediate receiving member 12 .

The intermediate receiving member 12 has the support member 6 inserted through the upper and lower through-holes 56, the upper portion of the upper plate portion 50 is fastened with a nut member 38 and a washer 40, and the lower portion of the lower plate portion 54 is a washer 58 and a nut member 38. Tighten and fix. The washer 58 is made of a hollow disc-shaped steel material.
The height of the intermediate receiving member 12 can be adjusted by vertically moving the upper and lower nut members 38 screwed to the support member 6, thereby adjusting the height of the lower tread surface. .

As shown in FIG. 2, the upper receiver 10 is held and fixed by a fixing nut 46, a washer 40 and a nut member 38. As shown in FIG. The intermediate receiving member 12 is held and fixed by a nut member 38, a washer 40, a washer 58 and the nut member 38. As shown in FIG.

The intermediate receiving member 12 is a cylindrical member having a rectangular cross-section, and in a state in which the support member 6 is inserted through the through-hole portion 56 on the side of the one end portion 51 in the axial direction and attached, the other end portion 53 side extends laterally. A mounting space portion 60 is formed in this portion so as to allow the large drawing material 20 to be mounted thereon.

As shown in FIG. 3( a ), the cylindrical intermediate receiving member 12 has a side plate portion 52 with a vertical width (h) of 40 mm, an upper plate portion 50 and the like with a horizontal width (w) of 80 mm, and an axial length of (L) is 145 mm, and the square steel pipe has a plate thickness of 2.2 mm. Further, the through hole portion 56 provided in the intermediate receiving member 12 is a circular hole with a diameter of 17 mm. Thus, the intermediate receiving member 12 is formed so that the length (L) in the axial direction is longer than the width (w) and the length (h).

In the upper plate portion 50 of the intermediate receiving member 12, the axial length (L1) of the mounting space portion 60 in which the large drawing member 20 on the right side of the through hole portion 56 can be mounted is approximately 110 mm. Therefore, as the mounting space portion 60, 8800 square millimeters (88 square centimeters), which is obtained by multiplying the length (L1) by the width of 80 mm, becomes a space in which the large drawing material 20 (for example, the width of 74 cm) can be mounted.

In this manner, the mounting space portion 60 of the intermediate receiving member 12 can place the large wire members 20 with a margin. etc.), and can be placed and fixed.
3B is interposed between the upper plate portion 50 and the lower plate portion 54 to reinforce the intermediate receiving member 12. As shown in FIG.

FIG. 4 shows a state in which the support member 62 is included in the vicinity of the axial end 51 of the intermediate receiver 12 .
The support member 62 is arranged between the upper plate portion 50 and the lower plate portion 54 in the vicinity of the one end portion 51 of the intermediate receiver 12, and the upper end portion and the lower end portion of the support member 62 correspond to the upper plate portion 50 and the lower plate portion 54, respectively. is fixed to

The support member 62 is arranged particularly near the through-hole portion 56 of the intermediate receiver 12 . Specifically, the L-shaped top portion 61 of the support member 62 is directed toward the one end portion 51 side of the intermediate support member 12 , and the L-shaped opening portion 63 is placed on the other end portion 53 side of the intermediate support member 12 . It is arranged toward the space part 60 . In this manner, the support member 62 is arranged in such a manner that the opening 63 thereof partially surrounds the through-hole portion 56 .

The lower surface of the upper plate portion 50 of the intermediate receiving member 12 and the upper end portion of the support member 62, and the upper surface of the lower plate portion 54 and the lower end portion of the support member 62 are fixed by welding (welded portion 64). there is As a result, the support member 62 reinforces the inward (vertical) pressure applied to the upper plate portion 50 and the lower plate portion 54 of the intermediate receiving member 12 .

When fixing the intermediate support 12 to the support member 6 with the nut member 38, the upper plate portion 50 and the lower plate portion 54 of the intermediate support 12 are strongly tightened by the nut member 38, respectively. A portion of one or both of the portion 50 and the lower plate portion 54 may be crushed. In this case, since the upper plate portion 50 and the lower plate portion 54 are connected and supported by the support member 62, there is no fear of being crushed.
In addition, although a steel material having an L-shaped cross section is used as the support member 62 here, it is also possible to use a steel material having a bar-shaped, plate-shaped, U-shaped cross section, tubular, H-shaped, or the like.

The intermediate receiving member 12 here is a square tubular member having a rectangular cross section, and has a vertical width (h) of 40 mm and a horizontal width (w) of 80 mm. It forms widely (w>h). This is to secure a wide mounting space portion 60 on the upper plate portion 50 of the intermediate receiving member 12 and to mount the large drawing material 20 with a margin.
In this case, since the width (w) of the intermediate support 12 is widened, the strength of the upper plate portion 50 and the lower plate portion 54, especially the strength (in the vertical direction) near the central portion is weakened. The strength of the upper plate portion 50 and the lower plate portion 54 is increased by interposing the support member 62 .

As shown in FIG. 5, a large-barrel material 20 is placed on the upper part of the intermediate receiving member 12, and a joist material 22 is placed on the upper part of the large-barrel material 20 in a direction intersecting therewith. The subfloor will be formed with timber.
The large pull member 20 is a steel material having a hat-shaped cross section having an upper surface portion 66 , left and right side portions 67 and flange portions 68 . The large drawing material 20 used here has a vertical width of 40 mm, a horizontal width of 40 mm, a horizontal width of 74 mm including the flange portion 68, and a plate thickness of 1.6 mm.
On the other hand, the upper plate portion 50 of the intermediate support 12 has a width of 80 mm and a length of 110 mm as the mounting space portion 60 . For this reason, when the large drawer 20 having a width of 74 mm is placed in the placing space portion 60 having a length of 110 mm in the intermediate support 12, there is a margin of 36 mm (=110-74).

Therefore, the placement space portion 60 for fixing the large wire members 20 of the intermediate receiving member 12 is sufficiently capable of placing, for example, the tip portions of two large wire members 20 against each other.
Here, the length (L1=110 mm) of the mounting space portion 60 of the intermediate receiving member 12 is approximately 1.5 times the width (74 mm) of the widening member 20 (magnification=length/width). As for this magnification, another range of about 1.2 times to 1.8 times is considered to be an appropriate range for placing the large drawing material 20 .
Since the upper receiving member 10 is also circular in shape and has a diameter of 85 mm, it is sufficiently possible to place, for example, the tip portions of two large drawing members 20 on the upper portion thereof.

The joists 22 also have a hat-shaped cross section having an upper surface portion 70 , left and right side portions 72 and flange portions 74 . Also, the thickness of the joist material 22 is 1.2 mm, which is 0.4 mm thinner than the thickness of the joist material 20 (1.6 mm) to reduce weight.
In addition, vibration-proof material 78 is arranged at the lower part of each of the joist material 20 and the joist material 22 to prevent vibration, squeak, and the like. The vibration isolator 78 is made of an elastic material such as rubber, and is a rectangular plate as a whole, and has a flat plate-like portion 80 and hook-like holding portions 82 formed on the left and right sides. . The holding portion 82 holds the flange portion 68 of the large drawing member 20 and the flange portion 74 of the joist member 22, respectively.

Next, a method for assembling and installing the stepped floor support leg 2 will be described.
Although the assembly procedure is not particularly limited, first, the intermediate receiver 12 is attached to the intermediate portion of the support member 6 (between the upper receiver 10 and the upper support portion 30 of the pedestal 8). A support member 62 is attached in advance to the intermediate receiving member 12 .

Then, the strut member 6 is inserted from the through hole portion 56 of the upper plate portion 50 of the intermediate support member 12 to the through hole portion 56 of the lower plate portion 54 , and the intermediate support member 12 is fitted to the intermediate portion of the support member 6 .
The intermediate receiving member 12 has a washer 40 interposed on the upper side of the upper plate portion 50 and the nut member 38 is screwed thereon.
In this manner, the intermediate receiver 12 is fastened and attached to the support member 6 in a state in which the intermediate receiver 12 is sandwiched between the nut members 38 from above and below.

In this case, the washer 58 has a larger surface area than the washer 40, so that the large area effectively and firmly supports the intermediate receiver 12. As shown in FIG.
By adjusting the upper and lower nut members 38 , the intermediate receiver 12 can be arranged at the intermediate portion of the support member 6 so as to be adjustable in height, and can be attached to a predetermined position of the support member 6 . For example, the intermediate receiver 12 is attached to the corresponding position of the strut member 6 which is positioned below the upper receiver 10 by the height of the riser.

Subsequently, the part on the lower side of the support member 6 is fixed to the support portion 30 of the pedestal 8 . In this case, the nut member 38 and the washer 40 are previously attached to the support member 6, the support member 6 is inserted from below into the holding hole 36 of the support portion 30, the nut member 38 is attached from below, and the support is fastened. The member 6 is erected and fixed on the pedestal 8 .

Finally, the upper support 10 is attached to the upper part of the support member 6. As shown in FIG. A fixing nut 46 is fixed in advance to the back surface of the upper receiving member 10 by welding or the like. Then, the nut member 38 is screwed to the vicinity of the upper part of the support member 6 first, the washer 40 is interposed in the upper part thereof, and the fixing nut 46 of the upper receiving member 10 is screwed from the upper part of the support member 6, The nut member 38 is tightened from below to fix the upper receiving member 10 to the support member 6 .

In this case, the upper end portion of the support member 6 can pass through the hole 44 of the upper support member 10 and protrude above the upper support member 10 , and the upper support member 10 is higher than the support member 6 . can be adjusted.
As a result, in the stepped floor support leg 2, the height of the strut member 6 can be adjusted with respect to the pedestal 8, and the height position of the intermediate receiver 12 with respect to the strut member 6 can also be freely adjusted. The height of the upper receiving member 10 can also be adjusted.
The stepped floor supporting legs 2 can place and fix the large timber 20 and the joist material 22 on the upper support 10 and the intermediate support 12, respectively.

6(a) and 6(b) show a state in which the large drawing material 20 is placed in the placing space portion 60 of the intermediate receiving member 12. FIG. As shown in the figure, the mounting space portion 60 of the intermediate receiving member 12 has a flat upper surface and is large enough to mount the large drawing member 20 with a margin.
As a result, in the mounting space portion 60 of the intermediate receiving member 12, the two large wire members 20 can be placed at a predetermined angle (such as an obtuse angle) so that the two large wire members 20 are butted against each other. . Each large wire member 20 placed on the intermediate receiving member 12 has a vibration isolator 78 interposed between it and the intermediate receiving device 12, and each flange portion 68 of the large wire member 20 is attached with a screw (such as a sill tap). It is fixed to the intermediate receiver 12 using

As a result, for example, when forming a stepped floor at a portion with a curved corner, the stepped floor support legs 2 are arranged at a plurality of locations on the curved line, and the large tension members 20 are arranged between the adjacent stepped floor support legs 2 . are installed continuously and at an angle, the large drawbars 20 can be arranged in a shape close to a curved shape. In addition, by using the stepped floor support legs 2, it is possible to construct a stepped floor structure composed of a curved and stepped upper floor surface and a lower floor surface, making it easy to construct such a stepped floor structure. and can be done effectively.

Moreover, when arranging the widening member 20 between a plurality of stepped floor support legs 2, it is also possible to arrange one widening member 20 through. As a result, there is no need to cut the large lumber 20 to a length corresponding to the pitch between the stepped floor supporting legs 2, which contributes to the improvement of workability.
As for the upper receiving member 10, it is also possible to place two large drawing members 20 on the upper surface thereof with a predetermined angle. For this reason, by using the stepped floor support legs 2, the upper floor surface of the stepped floor is formed by the upper support member 10, and the lower floor surface is formed by the intermediate support member 12, even in a curved portion. can be formed.

As shown in FIG. 7, when the stepped floor support leg 2 is installed and fixed to the foundation surface 1, for example, an anchor member 84 (screw for concrete, nail, or the like) is used. A hole is provided in advance in the fixed portion 34 of the pedestal 8 of the stepped floor support leg 2, and the anchor member 84 is inserted through the hole, and the anchor member 84 is driven into the base surface 1 to fix the fixed portion 34 at two locations. It is fixed to the surface 1 and the stepped floor supporting legs 2 are installed.

Next, a construction example of the stepped floor support structure 4 using the stepped floor support legs 2 will be described.
FIG. 8 shows a plan view of the stepped floor support structure 4 at a portion where the boundary of the stepped floor is curved in an L shape. As shown in the figure, here, an upper floor (for example, L-shaped) and a lower floor (for example, L-shaped) are formed on the foundation surface 1 of the building. Then, the stepped floor of the stepped floor support structure 4 is constructed from a floor surface with a step at each corner of these L-shaped corners.
In the drawing, the upper floor surface 24 is indicated by a solid line where the joist material 22a (22) is arranged, and the lower floor surface 26 is indicated by a dotted line where the joist material 22b (22) is arranged.

The boundary between the upper floor surface 24 and the lower floor surface 26 has a curved shape (an arc shape). Therefore, the step floor supporting legs 2 are arranged at several positions (here, four positions) on the curved line that draws the curved shape. In this case, if the base surface 1 is uneven, the height adjustment function of the step floor supporting legs 2 is used to adjust the height to a constant level.

In the stepped floor support leg 2, the upper receiving member 10 is provided with a large hanging member 20a (20) as a base member for the floor surface 24 of the upper step. In this case, three large drawbars 20a (20) are bridged between the upper receiving members 10 of each stepped floor supporting leg 2 respectively. For each of the two stepped floor support legs 2 at the intermediate portion of the curved shape, the two large tension members 20a are butted against each other at a predetermined angle (an angle along the curved shape) with the upper receiving member 10. to place.

Similarly, on the intermediate receivers 12 of the stepped floor supporting legs 2, the large-hanging members 20b (20) as base members for the floor surface 26 of the lower step are arranged. Then, three large tension members 20b (20) are bridged between the intermediate receiving members 12 of each stepped floor supporting leg 2 respectively. For each of the two stepped floor support legs 2 in the intermediate part, two large pulleys 20b are placed in the mounting space 60 of the intermediate supporter 12 at a predetermined angle (substantially the same angle as the upper supporter 10). Place them side by side.

A vibration isolator 78 is interposed between each of the large wire members 20a placed on the upper receiving member 10, and each flange portion 68 of the large wire member 20a is attached with a screw (such as a sill tap). to fix it to the upper receiver 10. In the case where two large wire members 20 are butted against each other on the upper receiving member 10, each large wire member 20 is fixed with a screw. The large tension member 20b placed on the intermediate receiving member 12 is also fixed to the mounting space portion 60 of the intermediate receiving member 12 with a screw by interposing the vibration isolating member 78 in the same manner.

Although not shown in the figure, as a base material for the upper floor surface 24, supporting legs (the height of which matches the height of the upper floor) to which only the upper receiving member 10 is attached are arranged, and a base material for the lower floor surface 26 is provided. Similar supporting legs (the height of which is matched to the height of the lower stage) are used for the lumber, and the large lumber 20 is placed in each.
Then, joist members 22 (22a, 22b) are arranged in a direction that intersects between the large drawing members 20. As shown in FIG. Each joist material 22 is fixed to the upper part of the overhanging material 20 using a screw (such as a sill tap).

Further, a scrap board (plywood board material or the like) is attached to the upper part of the joist material 22 . The scrap board is fixed to the upper surface portion 70 of the joist material 22 (22a, 22b) using screws (tapping screws, etc.). A finishing material is placed on top of the scrap board.

Therefore, according to the above-described embodiment, it is possible to arrange the large hanging materials for the underfloor in any direction in a curved boundary of the stepped floor such as a room, so that the underfloor for the stepped floor can be effectively constructed. There is an effect that it is excellent in convenience and also excellent in workability. In addition, when constructing a stepped floor support structure using stepped floor support legs, it is possible to complete the stepped floor by assembling each member mainly using screws etc. at the site, so the work can be done quickly and easily. It is also excellent in productivity and workability.

REFERENCE SIGNS LIST 1 base surface 2 stepped floor support leg 4 stepped floor support structure 6 strut member 10 upper support tool 12 intermediate support tool 20 joist material 22 joist material 51 one end portion 53 other end portion 56 through hole portion 60 placement space portion 62 support member

Claims (7)

A stepped floor support leg that supports an upper subfloor material and a lower subfloor material of a stepped floor,
a strut member erected against the base surface;
an upper receiving member arranged on the upper part of the support member and capable of placing a large hanging material related to the upper underfloor material;
an intermediate receiving tool attached to an intermediate portion of the support member and capable of placing a large hanging material related to the underfloor material on the lower side;
The intermediate receiver is formed in a cylindrical shape arranged sideways, a through-hole portion is provided on one end side of the intermediate receiver for vertical insertion, and the other end side of the intermediate receiver is provided with the large drawing material. can form a flat mounting space,
A stepped floor supporting leg, wherein the strut member is inserted through a through-hole portion of the intermediate support member, and the intermediate support member is attached to an intermediate portion of the strut member. 2. A stepped floor supporting leg according to claim 1, wherein a screw groove is formed in said support member, and said intermediate support member is attached to said support member so as to be adjustable in height. As the intermediate support, a rectangular tubular material having a rectangular cross section is used, which is composed of an upper plate portion, side plate portions bent downward from left and right portions of the upper plate portion, and a lower plate portion. 3. The stepped floor supporting leg according to claim 1, wherein the vertical width of the side plate portion is larger than that of the side plate portion. The upper plate portion and the lower plate portion of one end portion of the intermediate receiving member are provided with the through holes, respectively, the support members are inserted through the through holes, and the upper and lower portions of the intermediate receiving member are respectively fastened with nut members. 4. The stepped floor supporting leg according to claim 3, wherein the stepped floor supporting leg is fastened and fixed. A support member is arranged between the upper plate portion and the lower plate portion in the vicinity of one end of the intermediate receiving member, and the upper end portion and the lower end portion of the support member are fixed to the upper plate portion and the lower plate portion, respectively. Item 5. The stepped floor support leg according to Item 3 or 4. 6. The stepped floor support according to claim 5, wherein the support member is formed to have an L-shaped cross section, and a part of the vicinity of the through hole is surrounded by the L-shaped opening of the support member. leg. The stepped floor supporting legs according to any one of claims 1 to 6 are arranged at three or more points on a curved line on the base surface, and
A state in which the ends of the two large-barriers are butted against the mounting space portion of the intermediate receiver of the stepped floor support leg, and the angle formed by the large-barriers conforms to the curved shape. A stepped floor support structure, characterized in that the stepped floor is arranged to form a base of the stepped floor.

Images